Search for new thermoelectric materials through exploratory solid state chemistry

Antje Mrotzek, Tim Hogan, Mercouri G Kanatzidis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The compound types A1+xM3-2xBi7+xSe14, A1-xM3-xBi11+xSe20, A1-xM4-xBi11+xSe21 and A1-xM5-xBi11+xSe22 (A = K, Rb, Cs; M = Sn, Pb) form from reactions involving A2Se, Bi2Se3,M and Se. The single crystal structures reveal that they are all structurally related so that they all belong to the homologous series Am[M6Se8]m[M5+nSe9+n ] (M = di- and trivalent metal), whose characteristics are three-dimensional anionic frameworks with tunnels filled with alkali ions. The building units that make up these structures are derived from different sections of the NaCl lattice. In these structures, the Bi and Sn (Pb) atoms are extensively disordered over the metal sites of the chalcogenide network, giving rise to very low thermal conductivity. These phases are all narrow gap semiconductors with 0.25 <Eg <0.60 eV and many possess physico-chemical and charge transport properties suitable for thermoelectric investigations.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium - Proceedings
Pages101-112
Number of pages12
Volume691
Publication statusPublished - 2002
EventThermoelectric Materials 2001-Research and Applications - Boston, MA, United States
Duration: Nov 26 2001Nov 29 2001

Other

OtherThermoelectric Materials 2001-Research and Applications
CountryUnited States
CityBoston, MA
Period11/26/0111/29/01

Fingerprint

Metals
Alkalies
Transport properties
Charge transfer
Thermal conductivity
Tunnels
Crystal structure
Single crystals
Ions
Semiconductor materials
Atoms

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Mrotzek, A., Hogan, T., & Kanatzidis, M. G. (2002). Search for new thermoelectric materials through exploratory solid state chemistry. In Materials Research Society Symposium - Proceedings (Vol. 691, pp. 101-112)

Search for new thermoelectric materials through exploratory solid state chemistry. / Mrotzek, Antje; Hogan, Tim; Kanatzidis, Mercouri G.

Materials Research Society Symposium - Proceedings. Vol. 691 2002. p. 101-112.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mrotzek, A, Hogan, T & Kanatzidis, MG 2002, Search for new thermoelectric materials through exploratory solid state chemistry. in Materials Research Society Symposium - Proceedings. vol. 691, pp. 101-112, Thermoelectric Materials 2001-Research and Applications, Boston, MA, United States, 11/26/01.
Mrotzek A, Hogan T, Kanatzidis MG. Search for new thermoelectric materials through exploratory solid state chemistry. In Materials Research Society Symposium - Proceedings. Vol. 691. 2002. p. 101-112
Mrotzek, Antje ; Hogan, Tim ; Kanatzidis, Mercouri G. / Search for new thermoelectric materials through exploratory solid state chemistry. Materials Research Society Symposium - Proceedings. Vol. 691 2002. pp. 101-112
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